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Erdős problem 870

Let k≥3k\geq 3 and AA be an additive basis of order kk. Does there exist a constant c=c(k)>0c=c(k)>0 such that if r(n)≥clog⁡nr(n)\geq c\log n for all large nn (where r(n)r(n) counts representations of nn as a sum of at most kk elements of AA) then AA must contain a minimal basis of order kk? The claimed answer is no, for every k≥3k\geq 3.

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  • AI collaborating with humans

    Erdős AI contributions wiki · 24 Apr-May 2, 2026

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    GPT-5.4 Pro, GPT-5.5 Pro
    People
    David Turturean
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  • construction

    VibeMathed

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    GPT-5.4 Pro, GPT-5.5 Pro
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    David Turturean
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